This BluePrint Engines 400 cubic inch GM small block crate engine is a base dressed, carbureted build rated at 500 horsepower and 510 lb-ft of torque. It uses a cast iron 4-bolt main block with a forged steel crankshaft, forged pistons, a hydraulic roller cam, and BluePrint HP8103 aluminum heads, and it comes with a Holley 850 CFM Double Pumper carburetor, dual plane intake, and Pro Series distributor.
Specifications:
- Displacement: 400 c.i.
- Horsepower: 500 HP
- Torque: 510 lb-ft
- Bore: 4.125 in
- Stroke: 3.750 in
- Compression ratio: 10.3:1
- Block: High-strength cast iron, manufactured and machined in the USA, 4-bolt main, 4.125 in bore, 1-piece rear main seal, mechanical fuel pump provision, passenger-side dipstick, drilled and tapped for clutch linkage
- Crankshaft: BluePrint forged steel, 3.750 in stroke
- Connecting rods: 5.700 in, with 150,000 PSI bolts
- Pistons: Forged
- Cylinder heads: BluePrint aluminum HP8103, 64cc chamber, 2.08 in intake / 1.60 in exhaust valves, 220cc intake / 67cc exhaust runners, .500 raised port versus OEM
- Camshaft: Hydraulic roller, .553 in intake / .576 in exhaust lift, 236/242 duration at .050, 110 deg LSA
- Induction: Carbureted: Holley 850 CFM Double Pumper (BPP04781S) on a dual plane aluminum intake
- Balance: Internally balanced front, externally balanced rear
- Ignition timing: 10-16 degrees initial and total timing; 32-34 degrees at 3500 RPM
- Fuel: 91+ octane
- Part number: BP4002CTC1
What's Included: This is a base dressed, carbureted engine. BluePrint itemizes the following: Holley 850 CFM Double Pumper carburetor (BPP04781S), dual plane satin aluminum intake manifold (BPP350VINT), Pro Series ready run distributor (BPP3503BK), BluePrint valve covers (BPP9518), BluePrint dipstick (BPP9420), timing cover, oil pump, and oil pan.
Engine Platform: Built to the GM small block (SBC) platform. BluePrint notes that the installed aftermarket intake may not be compatible with OEM accessory brackets that use intake mounted bosses, and recommends electric fans producing 3000 cfm or more for engines 400 c.i. or less.
Compliance: BluePrint states this engine is not for EGR.
Prop 65 Warning: This product can expose you to chemicals known to the State of California to cause cancer and reproductive harm. For more information visit www.P65Warnings.ca.gov.
FAQ
What comes on the BP4002CTC1 base dressed engine?
BluePrint itemizes a Holley 850 CFM Double Pumper carburetor (BPP04781S), a dual plane satin aluminum intake manifold (BPP350VINT), a Pro Series ready run distributor (BPP3503BK), BluePrint valve covers (BPP9518), a BluePrint dipstick (BPP9420), a timing cover, an oil pump, and an oil pan.
How much power does it make?
It is rated at 500 horsepower and 510 lb-ft of torque.
What carburetor is on it?
A Holley 850 CFM Double Pumper carburetor, part number BPP04781S, on a dual plane satin aluminum intake.
What octane does it require?
It is a 10.3:1 engine that BluePrint lists for 91+ octane fuel.
Does it include a water pump or harmonic balancer?
No. A water pump, harmonic balancer, spark plugs, plug wires, fuel pump, and air cleaner are not itemized for this base dressed variant, so plan to source those separately.
